#71
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new chain, slack
AMuzi wrote:
But half links are an actual thing, 100+ years old, cheap, available anywhere. More readily found than a 35t chainring! I've heard of them but never operated one or even seen one (I think). The application being when +1 link is too slack, and -1 link is too tight? Are they compatible with all chains? Also, I didn't understand your rotary air file method. What is a "single-point ends"? Thanks for your patience -- underground experts united http://user.it.uu.se/~embe8573 |
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#72
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new chain, slack
On 1/3/2018 6:03 PM, Emanuel Berg wrote:
AMuzi wrote: But half links are an actual thing, 100+ years old, cheap, available anywhere. More readily found than a 35t chainring! I've heard of them but never operated one or even seen one (I think). The application being when +1 link is too slack, and -1 link is too tight? Are they compatible with all chains? Also, I didn't understand your rotary air file method. What is a "single-point ends"? Thanks for your patience See your local LBS: http://www.yellowjersey.org/HALFLINK.JPG for 1/2 x 1/8" chain. Classic road & track ends allow axle movement to correct chain length for wear and tension. http://www.yellowjersey.org/photosfr...t/HARDENDS.JPG Single point ends are for use with derailleurs or other chain tension devices: http://www.yellowjersey.org/photosfr...st/endbs13.jpg Some riders end up with a single-point frame and want fixed or CB. ('want' but usually not enough to pay us to change the ends) A small increase in the slot size can make enough difference. Just did one like that on Sunday. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#73
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new chain, slack
AMuzi wrote:
See your local LBS: http://www.yellowjersey.org/HALFLINK.JPG for 1/2 x 1/8" chain. Classic road & track ends allow axle movement to correct chain length for wear and tension. http://www.yellowjersey.org/photosfr...t/HARDENDS.JPG Single point ends are for use with derailleurs or other chain tension devices: http://www.yellowjersey.org/photosfr...st/endbs13.jpg Some riders end up with a single-point frame and want fixed or CB. ('want' but usually not enough to pay us to change the ends) A small increase in the slot size can make enough difference. Just did one like that on Sunday. Very clever! And very educative, thank you. See guys? Track ends and CBs are ultimately the best, as I've said all along -- underground experts united http://user.it.uu.se/~embe8573 |
#74
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new chain, slack
BTW wasn't there yet another version for CBs
where the track was in the opposite direction from everyday track ends, and there were screws to fine-adjust wheel position and chain tension? -- underground experts united http://user.it.uu.se/~embe8573 |
#75
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new chain, slack
On 1/3/2018 6:55 PM, Emanuel Berg wrote:
AMuzi wrote: See your local LBS: http://www.yellowjersey.org/HALFLINK.JPG for 1/2 x 1/8" chain. Classic road & track ends allow axle movement to correct chain length for wear and tension. http://www.yellowjersey.org/photosfr...t/HARDENDS.JPG Single point ends are for use with derailleurs or other chain tension devices: http://www.yellowjersey.org/photosfr...st/endbs13.jpg Some riders end up with a single-point frame and want fixed or CB. ('want' but usually not enough to pay us to change the ends) A small increase in the slot size can make enough difference. Just did one like that on Sunday. Very clever! And very educative, thank you. See guys? Track ends and CBs are ultimately the best, as I've said all along To quote Duane 'Double Century' Hickling, 'Anything worth doing is worth overdoing' http://kmcchain.us/chaintype/half-link-series-12x18/ -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#76
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new chain, slack
On 1/3/2018 7:17 PM, Emanuel Berg wrote:
BTW wasn't there yet another version for CBs where the track was in the opposite direction from everyday track ends, and there were screws to fine-adjust wheel position and chain tension? Those track ends (horizontal with opening at the rear) had an adjuster screw from the front. http://thumbs4.ebaystatic.com/d/l400...88879797_1.jpg Cheaper than a separate chain adjuster but the same effect: http://www.yellowjersey.org/GCDL5.JPG With either, axle nuts bear a smaller load so wheels stay in place with hardly any wrench torque. -- Andrew Muzi www.yellowjersey.org/ Open every day since 1 April, 1971 |
#77
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new chain, slack
On 1/3/2018 6:54 PM, AMuzi wrote:
On 1/3/2018 4:38 PM, Frank Krygowski wrote: On 1/3/2018 4:57 PM, AMuzi wrote: On 1/3/2018 3:08 PM, dave wrote: On Wed, 03 Jan 2018 01:52:31 +0100, Emanuel Berg wrote: Frank Krygowski wrote: If you mean a tool to check the wear of a chain, yes there are several varieties. No, I mean a tool to check how tightly the chain is mounted on the bike, which I suppose is a function of chain wear to some degree but even more so the distance between sprocket and chainring, i.e. how far the rear wheel is pulled back? I use the Mk. 1 Finger. And the method of quantification could be the possible vertical movement of the chain at its loosest? Exactly! Finger the chain upwards. If there is too much slack tighten. If it's too taught loosen it. So if there is anyone out there who can tell me how to tighten the chain on a bike with no adjustment I would be grateful. 34 front 23 rear on an Alfine 11. 1/2 link tighter would be nice. Why didn't you use a half link then? I'm seeing marketing opportunities here. For Emanuel, a special iFinger tool, bluetooth connected to one's phone, using super GPS to tell how far the single speed chain is rising when force is applied. No more by guess and by golly, by golly! And sure, half links sound useful, but why stop there? By choosing between the half link, the one-third link, the one-quarter link, etc. a non-derailleur cyclist could finally get his chain tension perfectly right. Just the thing to show off at the coffee shop! And software! We have programmers here who could write the iFinger app to help select just the right combination of non-integer links. We'll make millions of dollars! ... or, well, maybe tens of dollars. Or maybe ones of dollars. But half links are an actual thing, 100+ years old, cheap, available anywhere. I know, but I've never used one on a bike. Oddly enough, I have a motorcycle-sized one in one of my little drawers of miscellaneous mechanical junk. It's from my pre-BMW days. -- - Frank Krygowski |
#78
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new chain, slack
On 1/3/2018 8:35 PM, AMuzi wrote:
To quote Duane 'Double Century' Hickling, 'Anything worth doing is worth overdoing' http://kmcchain.us/chaintype/half-link-series-12x18/ I once went to a three-day seminar on industrial power transmission equipment. It sounded good in the brochure. At one point, the "expert" doing the seminar said that he didn't know why chain manufacturers didn't sell industrial chains made entirely of half links, like the ones in your photo. He said they would be much stronger. By that point, I'd already written off the seminar as worthless. -- - Frank Krygowski |
#79
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new chain, slack
AMuzi wrote:
Cheaper than a separate chain adjuster but the same effect: http://www.yellowjersey.org/GCDL5.JPG It is difficult to see what happens there...? Here is another way: https://cdn.gasbike.net/images_templ...ioner-demo.jpg Which I once saw on a tandem bike. There was a small chainwheel in between that one could adjust vertically to set the chain tension. -- underground experts united http://user.it.uu.se/~embe8573 |
#80
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new chain, slack
AMuzi wrote:
Take a couple of minutes to read Jobst Brandt's chain wear analysis in the purple text box he http://www.yellowjersey.org/3%2732.html Now I've read the text, and it was certainly worth the so-called "couple of minutes" it took to read and understand it What would further enhance its educational value are are a couple of illustrations! First, the difference between five and six element chains (5 being the swaged bushings model). I Googled this and found your site among the first hits! But alas, no good illustration (or photo). Then illos/photos for chain and sprocket wear, skipping, and "chainsuck"... -- underground experts united http://user.it.uu.se/~embe8573 |
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